Clutch for transmission-gearing.



EVEN E. COEFET, QE' LAWTN, OKLHMA.

GLUT "JH FR TRNSMISSENGEANG.

0 fel? whom t 'may concern:

' it known that Xiwel@ Ceme en of the eiied .l altes, residing ma "im in 'sne County ot eolnfaiichg ntzie .i;'1hf m:x,h:iveizweue eeifnin 11i-wund izsefu mpmvemens iu shlteiles for Tramsmissim-earingg :uid do hereby deeal'e the fuiewing in be :1 nu, dem@ and exact desei'ipiion of the im'euion, such es will enabe @there skiiled in the Mt which ii ai ins io make and use. die sume.

invention 'relates f) new an@ u efu improvements in euehes im' tranen s510111.

gearing ifm' mem' ,'eiiie of the Lj-fpe in salu "i nii ef the geni-:s are eonsmntly m mesh, the seiectre drive being ebeined by ,J the delven shaft in and oui: of eil* mgimis gears t@ ieeq die .eme upc-n the shaf, mi the object ci my :faction and euches of the she draws mlmeras of my irfip-'e ed. mi, she J singie i" esfzablisi coute exi'ed ferm Wine" in practicen casing and einen fi' mumczr ifi upon the easing B1G.

1 are provid-s with ained bearings il and 12 and one eedof the driving shat 13 is journaled in he bearing l Whie the driven shaft le is joui'- naled in he opposite bee'fng 12 [is shown, 'the f hiving; shzif 13 extends but a siih; (iiszmee Within tiie'easing and terminates in a reduced trunnion 15 which engages in e seeke's`l formed. in the ebuting end of the shaft l. by which ineens the dsffing m cir'ven shafs are maintained in eiieemeu', The trunniem l5 he secke: i6. and 1 that echef shaft may be rotated inependen of ehe other.

Keyed apen that portion of the shaft wihin 1he casing, is e spur gee? having a hub' portion 18 which extensie inWai-ciy over 'the emi 0f the diven'shef 14 for a reason which wi. be hereineer ex liaine.. Spui" gears 19, 2O and 2l, eeeh pmviei with a eeay dileced hub 22, are bore to receive the driven shaft 14 and the bees of these gears'are coimerboed to form an annular recess 23 about the shaft in which are positioned a pluraity of bearing xoers 2- b v means of which the gears may' be To ned abone he shaft Without unue frieion. As shown, the gears 19 and 20 are positioned adjneent ea eh other and centrally of the easing, being separated mezrey by@ bearingriiig 25 While the gear 21 is pestioned upon the shaft ajaeen the fear wal of he easing; from which it is sepaate only by the bearing; ring' Q5. The gears i9 and 2O ae heid against longindina movemeny upon the shaft by means of coairs 2'? which are seemed ngninst mavement upon he shaft` by means a. puiaiy ef set screws 28, said eozu's beine; pesi'toned one 13o bem' against the forwei'fy' (ireced hub Q2 of the gear i9 and die other io against iie oppo- -sitey diee'ted hub of the gem' Q0. The geef Re epurgears 33 and 84 mesh is ':yinrica in shape as is.

t 'wl therefore ee-seen d 35, the spur geaif 32 meshspur gear 1'2" of the ,driving with the spur gears 19 and 20, respectively, of thedriven shaft. 'The spur gear. 35 meshes with a spur gear 36 which is idly mounted upon a stuby shaft 37 carried byk the casing and which meshes with the spur gear Q1 of the driven shaft.

' Those portions of the driven shaft 14 lying between the gears 17 and 19 and between the gears 20 and 21 are provided with a pluralityY of spaced longitudinally extend- .I ing grooves or channels 38 which are semicircular in cross section and which are prolonged to extend beneath the hub portions 18 and :22 of thegears. Positioned in these grooves and slidable therein, are a plurality of cylindrical locking lingers 39 )which are preferably formed with slightly rounded ends and which extend beyond the periphery of the shaft as shown, those looking ingers positioned between the gears 17 and 19 being maintained in place by means of a collar 40 which is bored to receive the shaft 14 Vand further recessed to receive the eX- tending portions of the locking fingers whileV the locking ngers positioned between the' 22 of the gears are provided with' arcuatesockets 45- into which the ends of the locking fingers may be iorced. The outer 'ends of these sockets are preferably widened as at 46 for more ready reception of the locking lingers, said sickets tapering gradually in- Wardly as shown. The sockets 45 are materially Wider than the coactin'g portions of the pinsor fingers. lt is Well known that it is possible to mesh gear teeth or clutch teeth as long as their relative speeds do not exceed a critical rate. This critical rate may be increased by providing a greater clearance between the coacting parts. In the present case, the large amount of clearance space provided by the sockets 45 insures that the-pins may be inserted therein at `'all ordinary rates of relative' speed of these parts. This operation is also facilitated by the Haring mouths of the sockets.

As will be readily seen, if the collar 41 is moved to seat its locking fingers 39 in the sockets of the gear 21, said gear will be locked to the shaft 14.v While if the collar is lmoved to bring the fingers in engagement with the gear 20, saidlatter gear will be locked lto the shaft 14. 1f the collar 40 is Liconsa moved to bring its locking lingers 39 into` engagement With the sockets of the gear 22, said gear will be locked to the shaft 14, while if it is moved to bring its locking iingers into engagement with the hub 18 of the gear 17, the shafts 13 and 14 will be locked together to revolve as one. It will thus be lidably mounted in' suitable bores formed in the upper portion of the front and `rear walls of the casing 10 one upon either side of the shaft 14 and above the same7 are parallel rods 49 and 50 and secured to these rods are laterally directed. arms terminating in forks 51 and 52 respectively, the fork 51 engaging in the grove 42 of the clutch 47 while the fork 52 engages in the grove of the clutch 48. As will be seen the reciprocation of these rods will act through their fork arms to reciprocate the clutches to throw them in and out of operative position. These rods may be reciprocated by means of any preferred form of transmission controlling mechanism, a suitable form of controlling mechanism being illustrated and described inmy eri-pending application.

In' operation, suppose the clutches 47 and 48 to be in inoperative position as shown in Fig. 1. The rod 49 is then moved to force the clutch 48 into engagement with the gear Q0 when the drive Will act through the shaft 18, gear 17, gear 32, gear 34, gear 2O and shaft 14 which is the low speed of the transmission mechanism. When sufcient head- Way has been obtained, the clutch 48 may be moved back to neutral position and the rod 50 actuated to move the'clutch 47 into locking engagement 'with the gear 19 when intermediate drive will take place, the power being transmitted through the gears 17, 32,

33' and 19. The transmission mechanism may then be thrown into high gear by moving the clutch 47 out of engagement with the gear 19 and into engagement with theA gear 17, thus locking the driving and driven shafts together. If the gears are in neutral position and the operator desires to reverse the drive', the clutch 48 is moved into engagement with the gear 21, when the drive will be through the gears 17, gears 32, 35, the idle gear 36` and the gear. 21, the idle gear 36 serving to reverse the direct-ioni of motion of the driven shaft 14.

From the foregoing description, it will he apparent that I have provided a simple and effective form of selective transmission gearing in which all gears'are constantly un mesli, the selective drive being obtained by ist ses

the lor-ning of certain of the' gears upon the driven shaft by means ofa novel form of clutch. V

It will, of course, be understood that minor changes in the details of construction may be made if desired Without in the slightest degree departing from the spirit of my invention.

What I claim is:-

l. In a device of the kind described, a shaft provided with longitudinal grooves, a pair of clutch members revolubly mounted on said shaft and prvided with internal. grooves, arcuate in cross section and having Haring mouths, pins slidable in either direction from a central position in the grooves of the shaft and engageable in the grooves of the clutch members, and means for actuating said pins into and out of engagement with the grooves of the clutch member. Y

2. In a device of the kind described, a shaft provided with longitudinal grooves, arcuate in cross section and having Haring mouths. a clutch member revolubl mounted on said shaft and provided Wit internal grooves, pills slidable in the grooves of the shaft and engageable in the grooves of the clutch member, a collar surrounding said pins and attached thereto, and means engaging the collar for actuating the collar along said shaft and cause the pins to move into and out of engagement with the grooves of the clutch member.

3. ln a device of the kind described, a shaft provided with spaced longitudinal grooves, a clutch member revolubly mounted on said shaft and provided with spaced internal grooves arcuate in cross section and having Haring mouths, pins mounted in the grooves of the shaft and adaptedy to enter the grooves of the clutch member, and means for actuating said pins simultaneously into and out of engagement` with the grooves of the clutch member. 45 4. ln a device of the kind described, ashaft provided with spaced longitudinal grooves, a clutch member revolubly mounted on said shaft and having internal groovesM arcuate in cross section and having Haring 50 mouths, a guide collar fixed on said shaft and having grooves registering with 'the vooves of the shaft, pins slidably mount; .i 1n the shaft and collar grooves and adapted to engage the grooves of the clutch member, 55 and means for moving said pins into and out of engagement with said clutch member.

5. lln a device of the'kind described, u

shaft provided with longitudinal grooves. a pair of clutch members revolubly mounted o0 on said shaft and provided with internal grooves, a guide collar on said shaft having grooves registering with the grooves ot' the shaft, pins slid'able in either direction from a central position in the grooves of the shaft' and engageable in the grooves of the clutch members, and means for moving said pins into and out or' engagement with the grooves of the clutch members.

ln testimony whereof, I aiHX my signa ture, in presence of two witnesses.

invnN n.y Correr.

Witnesses: M. Kommen, C. L. OLDrmLo. 

